Physics
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- American Association of Physics Teachers (AAPT): Compadre
- Bookboon: Physics Books
- College Open Textbooks: Physics
- Cornell University Library: arXiv.org
- edX: Physics
- Electronic Journals Library: Physics
- INTECH Open Access Books: Physics
- Khan Academy: Physics
- MIT Open CourseWare: Physics
- Open Access Journals Search Engine (OAJSE) : Physics
- Open Culture: Free Physics Courses
- OpenStax College: College Physics
- VideoLectures.NET: Physics